Hi
@Donna9 
Welcome To BYC
How is your hen doing?
I'm glad you were able to get the shell out. It's possible there may be yolk left inside. Hopefully she will be able to expel that on out.
Giving the extra calcium was very good, you may want to provide her with some poultry vitamins if she seems a bit droopy.
Sometimes a soak in epsom salts can also get things moving as well. A one time laying glitch like a soft shell egg breaking, may not be too bad as long as she still continues to lay more eggs.
You may want to supplement her calcium by giving 1/2tab daily of Caltrate (or store brand) for a couple of weeks or until she starts laying harder shelled eggs. Limit treats to no more than 5-10% of her daily intake and make oyster shell available free choice.
Sometimes even with good food and supplements a hen may have not be able to absorb the nutrients she needs or she may have shell gland disorder and will continue to have problems. Do the best you can.
https://hencam.com/henblog/2015/08/a-laying-glitch/